Natal 1866 Official Letter Mailed Without Charges Raised

1866 OFFICIAL LETTER: Charming small format folded blue wrapper forwarded and accepted stampless and without postal charge, from Pietermaritzburg addressed "To The Post Master, Cape Town". A very early official letter showing a lovely full strike of the despatch cds NOV 6 1866 (Hart type F introduced 1860). VF, scarce piece.